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What is the difference between sedimentary metamorphic and igneous rocks and how do they change?

April 26, 2017difference igneous metamorphic rocks sedimentary

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What is the difference between sedimentary metamorphic and igneous rocks and how do they change?

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A sedimentary rock is a rock formed by normal and chemical weathering. A metamorphic rock is a rock that was formed by intense pressure and heat. A igneous rock is a rock formed by the melting of and then cooling of rocks. A metamorphic rock can undergo change by either undergoing weathering (turning it into a sedimentary rock), melting and cooling (changing it into a igneous rock), or undergoing intense heat and pressure (forming a new metamorphic rock). Any rock can undergo any of these processes and change.